Final answer:
The literary texts involve characters dealing with solitary pain or sorrow, like Rosemary's injection, which symbolize deeper emotional experiences.
Step-by-step explanation:
The passages presented are from literary texts, featuring characters that experience intense emotional or physical pain which they must confront alone. In these narratives, characters like Rosemary and others are subject to events that evoke a range of reactions, such as self-administered harm or profound grief. For instance, Rosemary injecting herself and the Giver being unable to watch can be interpreted as a metaphor for personal anguish or pivotal life events that others cannot fully share or ameliorate.
Each passage reflects on the solitary nature of certain human experiences, whether they're physical injections, self-inflicted wounds, or the emotional piercing of grief.